I can only compare with stock Galaxy S4 earphones.... EO-IG900 has little bigger medium :) cap - so it sit more securely and has more isolation, i wear my for 4 hours at home, 50 minutes while walking to work and found it perfect - no any inconvenience - again all for my ears. Noise isolation...

I take this phones from amazon http://www.amazon.co.uk/gp/product/B00IN9I22S/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1 It come with box and hard case - no manual or any parameters about sound ??? Overal sound is much more better :) that my stock inear comes with Samsung Galaxy S4. Cant compare...

OK i understand. It useful thing, maybe fostex release this feature in next firmware update.

A_Man_Eating_Duck - you can save in dac default inputs permanently. menu - ">" - in/vol mem - "О" - ">" - input+volume - "О" - menu

you totally right - now after ~100 of burn with isotec it completely different sounded phones - bass and high, but female vocal is still horrible... continue to burn... thank you for advise about positioning!

seems like it will be long way to "clear" sound :popcorn:

thank you guys for support :) now after 48+ hours of burn with isotek track 2 it sounds lightly better, but female vocal is still horrible... Gowry how long did you burn you headphones?

Yes exactly - "Worse than Apple earbuds", some members recommend up to 400 hrs of burn :confused_face(1): but even now i can see a huge hidden potential :ph34r: ....

Just get mine from amazon. New with Fostex HPA8 totally crushed in term of sound by Audio-technica ATH-AT1000x :( start to burn it....

yes,upgrade to last firmware immediately after receive HP-A8, all work fine, but i don't have dsd for testing and not use embedded flash reader.

I get my with friend who back from Japan. Also i use http://www.jauce.com/ to buy in Japan. It cost at all cheaper then local dealers.

japan version already updated to 3.1 firmware. http://www.fostex.jp/version_up/393 :) 新版 Version3.01 2013/12/19 ● SDカードからの再生において、一部のWAV(BWF）ファイルが再生できなかった問題に対応しました。

Thanks for great review! Anyone test SLP Auditor with Audio-Technica ATH-AD1000X and Ultrasone PRO 900 - does it "sound" together?

thats all i am in big game... now only 192Khz/24bit vinyl rips :)

A_Man_Eating_Duck - yes i have sd card less than 64 gb, still searching for this damn torx... Did anyone try FOSTEX-AudioPlayer Ver1 - how it sound with HP-A8 ?

HP-A8 just arrived from Japan with my friend - looking for this damn torx with pins....

A_Man_Eating_Duck Many thanks for complete information about power and versions! I think japan version is best for me.  Aftemarket can be found about 700$ with shipping.   PS inventor of torx with pin  - burn in hell...

Hello guys.   Looking for DAC  for headphones Audio-technica ATH-AD1000X and Ultrasone PRO 900.   Can anyone tell me what difference between HP-A8C and HP-A8? Same model for different markets? And they both work with 220V AC power?   And main goal - how it sound with ATH-AD1000x  and PRO...